>>21849927To catch Latios in my Emerald version, I caught a Murkrow in FireRed, EV trained it in Speed, grinded it to level 48 so it learned Mean Look, and taught it Thunder Wave and Taunt.
It could outspeed Latios, trap it with Mean Look, status it with Thunder Wave, and prevent it from healing with Taunt. Since it was immune to Latios's Psychic attacks, I could just sit there and keep tossing Pokéballs at it until I caught it.
